Relationship between Measures of Sediment-Size-Frequency Distributions and the Nature of Sediments

Research Article| December 01, 1970 Relationship between Measures of Sediment-Size-Frequency Distributions and the Nature of Sediments MARY W DAVIS; MARY W DAVIS Department of Geology, Michigan State University, East Lansing, Michigan 48823 Search for other works by this author on: GSW Google Scholar ROBERT EHRLICH ROBERT EHRLICH Department of Geology, Michigan State University, East Lansing, Michigan 48823 Search for other works by this author on: GSW Google Scholar Author and Article Information MARY W DAVIS Department of Geology, Michigan State University, East Lansing, Michigan 48823 ROBERT EHRLICH Department of Geology, Michigan State University, East Lansing, Michigan 48823 Publisher: Geological Society of America Received: 18 Mar 1970 Revision Received: 02 Jul 1970 First Online: 02 Mar 2017 Online Issn: 1943-2674 Print Issn: 0016-7606 Copyright © 1970, The Geological Society of America, Inc. Copyright is not claimed on any material prepared by U.S. government employees within the scope of their employment. GSA Bulletin (1970) 81 (12): 3537–3548. https://doi.org/10.1130/0016-7606(1970)81[3537:RBMOSD]2.0.CO;2 Article history Received: 18 Mar 1970 Revision Received: 02 Jul 1970 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation MARY W DAVIS, ROBERT EHRLICH; Relationship between Measures of Sediment-Size-Frequency Distributions and the Nature of Sediments. GSA Bulletin 1970;; 81 (12): 3537–3548. doi: https://doi.org/10.1130/0016-7606(1970)81[3537:RBMOSD]2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract The efficacy of indices that characterize grain-size-frequency distributions was evaluated for response of size distribution measures to variations of a theoretical model of two normal subpopulations. Empirical data patterns of Moiola and Weiser (1968) served as a check on the reasonableness of theoretical assumptions.Results indicate that, even for relatively simple models, percentile measures are not faithful counterparts of formal central-moment measures, except for nearly normal distributions. The percentile measures possess inherent flaws which severely compromise their utility. Data indicate, however, that combinations of two or more nonpercentile-based measures of size-frequency distributions can limit greatly the number of possible distributions for sets of statistical values and, in some cases, can define them uniquely.Empirical biparametric scatter diagrams on the basis of percentile statistics generally conform to the theoretically produced percentile-based curves, implying a degree of natural validity of the theoretical model and also a new means of evaluating such data. Evaluation of empirical data using knowledge of theoretical results indicates that water- and wind-deposited sediment can be described effectively using relatively simple models. Much of the scatter on these plots, however, can arise as likely from sample-sediment interactions as from inherent sediment variation. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.